Soybean milk powder based on white kidney bean extract and preparation method thereof
By preparing soy milk powder containing white kidney bean extract, the problem of insufficient sugar control performance of existing soy milk powders has been solved, achieving the effects of sugar control and nutritional enhancement.
Patent Information
- Application Number
- CN202511509797.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-01-09
AI Technical Summary
The sugar control performance of existing soy milk powder needs improvement, as it cannot effectively control blood sugar levels.
Soy milk powder was prepared using white kidney bean extract. By removing lipoxygenase and isoprotease from soybeans and adding α-amylase inhibitors from white kidney bean extract, the activity of α-amylase was inhibited, thus delaying carbohydrate absorption.
It effectively controls post-meal blood sugar levels, reduces oil oxidation and beany odor, enhances nutritional value, extends shelf life, and improves taste.
Smart Images
Figure CN121286636A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of protein beverage processing and utilization, and particularly relates to a soybean milk powder based on white kidney bean extract and a preparation method thereof. BACKGROUND
[0002] Soybean milk is a traditional beverage in China, which is prepared by soaking, grinding, filtering and boiling soybeans in water, and is rich in plant protein, calcium, phosphorus, iron, zinc and other minerals, and can supplement the body and improve health. In order to facilitate storage and transportation, the soybean milk liquid is prepared into soybean milk powder by high-temperature spray drying, which can realize instant and fast food.
[0003] With the development of social economy, the living structure of human beings has changed greatly, and the number of people with high blood sugar is increasing. Therefore, the design of a nutritional soybean milk powder product with sugar control performance has become the actual demand in the market. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a soybean milk powder based on white kidney bean extract to solve the problem that the sugar control performance of the soybean milk powder in the prior art needs to be improved.
[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: A preparation method of a soybean milk powder based on white kidney bean extract, comprising the following steps: Step one, adding peeled soybeans into pure water, heating and soaking, adjusting the pH value to 6.8-7.2 after soaking is completed, crushing and grinding, filtering, and collecting soybean milk liquid; Step two, dissolving white kidney bean extract in pure water to obtain a white kidney bean extract solution; Enzyme inactivation treatment is performed on the soybean milk liquid, and the white kidney bean extract solution is added to the soybean milk liquid after enzyme inactivation treatment, mixed to obtain a mixed liquid; Step three, sterilizing the mixed liquid, filtering, and drying to obtain the soybean milk powder based on white kidney bean extract.
[0006] Preferably, in the step one, the mass ratio of the peeled soybeans to the pure water is 1:(8-12).
[0007] Preferably, in the step one, the heating and soaking condition is to soak at a temperature of 85-95℃ for 20-30min, and the crushing and grinding is performed under a pressure of 0.2-0.3MPa.
[0008] In this process, the fat-oxidizing enzyme and isoproteinase in the soybeans are removed by heating and soaking, and the crushing and grinding is realized by the operation of a crusher and a fine grinder in sequence; Preferably, in the step two, when the white kidney bean extract solution is prepared, the mass ratio of the white kidney bean extract to the pure water is 1:(10-20).
[0009] Preferably, in the step two, the conditions of the enzyme inactivation treatment are 6-10 min at 135-145 DEG C under 0.3-0.5 MPa pressure.
[0010] Preferably, in the step two, the mass ratio of the soybean milk solution after the enzyme inactivation treatment to the white kidney bean extract solution is 10:(3-5).
[0011] Preferably, in the step three, the sterilization process comprises: heating the mixed solution to 90-100 DEG C, stirring and concentrating the mixed solution to a solid content of 36-40%, and then continuously stirring and sterilizing for 15-35 min while maintaining the temperature.
[0012] Preferably, in the step three, the drying comprises spray drying. The process parameters of the spray drying are: the pressure of the spray drying is 8-12 MPa, the exhaust air temperature is 95-105 DEG C, the inlet air temperature is 180-190 DEG C, and the tower temperature is 100-110 DEG C.
[0013] Preferably, in the step three, the pore size of the filter core used for the filtration is 4-8 mu m.
[0014] The application further discloses a white kidney bean extract-based soybean milk powder prepared by the preparation method.
[0015] Compared with the prior art, the application has the following beneficial effects: The soybean milk powder in the application is prepared by taking soybeans as the main raw material, and the soybeans are subjected to peeling treatment to remove mechanical impurities, dust and soybean germ in the soybeans, and harmful purine bases and other components contained in the peel, so that the bacterial content is reduced and the flavor of the soybean milk powder is optimized; the presence of the fatty oxidation enzyme causes the soybean milk powder to produce a beany odor and fat oxidation, and the trypsin inhibitor is an anti-nutritional factor existing in the soybeans and can hinder protein digestion and absorption; by removing the fatty oxidation enzyme and the iso-proteinase in the soybeans through heating and soaking, the flavor and taste of the soybean milk powder are improved, the shelf life is prolonged, the nutritional value is improved, and the anti-nutritional effect is eliminated. In the application, the white kidney bean extract is added during the preparation of the soybean milk powder, the white kidney bean extract contains alpha-amylase inhibitors, can inhibit the activity of alpha-amylase, thereby delaying and partially blocking the absorption of carbohydrates, helping to control blood sugar levels, reducing the rapid rise of postprandial blood sugar, indirectly playing an anti-glycation role, and the white kidney bean extract is rich in high-quality proteins, various amino acids, minerals and vitamin B1, B2 and the like, and can further improve the health level of the human body. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1Fig. 1 is a graph showing the results of the determination of the hypoglycemic performance in the test example of the present application. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0018] Embodiment 1 The present embodiment discloses a preparation method of soybean milk powder based on white kidney bean extract, comprising the following steps: Step one, add the peeled soybean to pure water, the mass ratio of the peeled soybean to the pure water is 1:8, soak at 85℃ for 30min, after soaking, adjust the pH value of the mixture to 6.8 with 5wt% NaHCO3 aqueous solution, crush and grind the soybean in sequence by a crusher and a fine grinder, the crushing and grinding is carried out under the pressure of 0.2MPa, filter, and collect the soybean milk liquid; Step two, dissolve the white kidney bean extract in pure water, the mass ratio of the white kidney bean extract to the pure water is 1:10, to obtain the white kidney bean extract solution; Enzyme inactivation treatment is carried out on the soybean milk liquid, the conditions of the enzyme inactivation treatment are as follows: under the pressure of 0.3MPa and at the temperature of 135℃, inactivate the enzyme for 10min, add the white kidney bean extract solution to the soybean milk liquid after the enzyme inactivation treatment, the mass ratio of the soybean milk liquid after the enzyme inactivation treatment to the white kidney bean extract solution is 10:3, mix, to obtain the mixed liquid; Step three, sterilize the mixed liquid, filter, and spray dry, to obtain the soybean milk powder based on the white kidney bean extract; The sterilization process comprises: heat the mixed liquid to 90℃, continuously stir and concentrate the mixed liquid to the solid content of 36%, and then sterilize for 35min while keeping the temperature; the pore size of the filter core used for filtering is 4μm; the process parameters of the spray drying are as follows: the pressure of the spray drying is 8MPa, the exhaust air temperature is 105℃, the inlet air temperature is 190℃, and the tower temperature is 110℃.
[0019] Embodiment 2 The present embodiment discloses a preparation method of soybean milk powder based on white kidney bean extract, comprising the following steps: Step one, add the peeled soybean into pure water, the mass ratio of the peeled soybean to the pure water is 1:12, soak at 95℃ for 20 minutes, after soaking, adjust the pH value of the mixture to 7.2 by using 5wt% NaHCO3 aqueous solution, crush and grind the soybean by using a crusher and a fine grinder in sequence, the crushing and grinding is carried out under the pressure of 0.3MPa, filter, collect the soybean milk liquid; Step two, dissolve the white kidney bean extract into pure water, the mass ratio of the white kidney bean extract to the pure water is 1:20, obtain the white kidney bean extract solution; Enzyme inactivation treatment is carried out on the soybean milk liquid, the enzyme inactivation treatment is carried out under the pressure of 0.5MPa at 145℃ for 6 minutes, add the white kidney bean extract solution into the soybean milk liquid after enzyme inactivation treatment, the mass ratio of the soybean milk liquid after enzyme inactivation treatment to the white kidney bean extract solution is 10:5, mix, obtain the mixed liquid; Step three, sterilize the mixed liquid, filter, spray dry, obtain the soybean milk powder based on the white kidney bean extract; The sterilization process includes: heat the mixed liquid to 100℃, continuously stir and keep the temperature after the mixed liquid is concentrated to the solid content of 40%, sterilize for 15 minutes; the pore size of the filter core used for filtering is 8μm; the process parameters of spray drying are: the pressure of spray drying is 12MPa, the exhaust air temperature is 95℃, the inlet air temperature is 180℃, the tower temperature is 100℃.
[0020] Example 3 The embodiment discloses a preparation method of soybean milk powder based on white kidney bean extract, including the following steps: Step one, add the peeled soybean into pure water, the mass ratio of the peeled soybean to the pure water is 1:9, soak at 90℃ for 25 minutes, after soaking, adjust the pH value of the mixture to 6.9 by using 5wt% NaHCO3 aqueous solution, crush and grind the soybean by using a crusher and a fine grinder in sequence, the crushing and grinding is carried out under the pressure of 0.25MPa, filter, collect the soybean milk liquid; Step two, dissolve the white kidney bean extract into pure water, the mass ratio of the white kidney bean extract to the pure water is 1:13, obtain the white kidney bean extract solution; Enzyme inactivation treatment is carried out on the soybean milk liquid, the enzyme inactivation treatment is carried out under the pressure of 0.35MPa at 140℃ for 7 minutes, add the white kidney bean extract solution into the soybean milk liquid after enzyme inactivation treatment, the mass ratio of the soybean milk liquid after enzyme inactivation treatment to the white kidney bean extract solution is 10:3.5, mix, obtain the mixed liquid; Step three, sterilize the mixed liquid, filter, spray dry, obtain the soybean milk powder based on the white kidney bean extract; The sterilization process comprises: heating the mixed solution to 95 DEG C, stirring and concentrating the mixed solution to a solid content of 37%, continuously stirring and keeping the temperature for sterilization for 30 min; the pore size of the filter core used for filtration is 5 mu m; the process parameters of spray drying are: the pressure of spray drying is 9 MPa, the exhaust air temperature is 100 DEG C, the inlet air temperature is 185 DEG C, and the tower temperature is 105 DEG C.
[0021] Example 4 The embodiment discloses a preparation method of soybean milk powder based on white kidney bean extract, comprising the following steps: Step one, add the peeled soybean into pure water, the mass ratio of the peeled soybean to the pure water is 1:10, soak at 90 DEG C for 25 min, after soaking, adjust the pH value of the mixture to 7.0 by using 5wt% NaHCO3 aqueous solution, crush and grind the soybean by using a crusher and a fine grinder in sequence, the crushing and grinding is carried out under the pressure of 0.25 MPa, filter, and collect the soybean milk liquid; Step two, dissolve the white kidney bean extract into pure water, the mass ratio of the white kidney bean extract to the pure water is 1:15, obtain the white kidney bean extract solution; Enzyme inactivation treatment is carried out on the soybean milk liquid, the enzyme inactivation treatment condition is that the enzyme inactivation is carried out under the pressure of 0.4 MPa and at the temperature of 140 DEG C for 8 min, add the white kidney bean extract solution into the soybean milk liquid after enzyme inactivation treatment, the mass ratio of the soybean milk liquid after enzyme inactivation treatment to the white kidney bean extract solution is 10:4, mix, and obtain the mixed solution; Step three, sterilize the mixed solution, filter, and spray dry to obtain the soybean milk powder based on the white kidney bean extract; The sterilization process comprises: heating the mixed solution to 95 DEG C, stirring and concentrating the mixed solution to a solid content of 37%, continuously stirring and keeping the temperature for sterilization for 30 min; the pore size of the filter core used for filtration is 5 mu m; the process parameters of spray drying are: the pressure of spray drying is 9 MPa, the exhaust air temperature is 100 DEG C, the inlet air temperature is 185 DEG C, and the tower temperature is 105 DEG C.
[0022] Example 5 The embodiment discloses a preparation method of soybean milk powder based on white kidney bean extract, comprising the following steps: Step one, add the peeled soybean into pure water, the mass ratio of the peeled soybean to the pure water is 1:10, soak at 90 DEG C for 25 min, after soaking, adjust the pH value of the mixture to 7.0 by using 5wt% NaHCO3 aqueous solution, crush and grind the soybean by using a crusher and a fine grinder in sequence, the crushing and grinding is carried out under the pressure of 0.25 MPa, filter, and collect the soybean milk liquid; Step two, dissolve the white kidney bean extract into pure water, the mass ratio of the white kidney bean extract to the pure water is 1:15, obtain the white kidney bean extract solution; The enzyme inactivation treatment of the soybean milk liquid is carried out under the condition of 0.45 MPa pressure and 140℃ temperature for 9 min, the white kidney bean extract solution is added into the soybean milk liquid after enzyme inactivation treatment, the mass ratio of the soybean milk liquid after enzyme inactivation treatment to the white kidney bean extract solution is 10:4, and the mixture is obtained after mixing; Step three, the mixture is sterilized, filtered, and spray dried to obtain the white kidney bean extract-based soybean milk powder; The sterilization process includes: the mixture is heated to 95℃, and after the mixture is concentrated to a solid content of 39% under stirring, the stirring is continuously carried out and the temperature is kept for 20 min of sterilization; the pore size of the filter core used for filtration is 7 μm; the process parameters of spray drying are: the pressure of spray drying is 11 MPa, the exhaust air temperature is 100℃, the inlet air temperature is 185℃, and the tower temperature is 105℃.
[0023] Comparative Example 1 The present comparative example discloses a preparation method of soybean milk powder, including the following steps: Step one, the peeled soybeans are added into pure water, the mass ratio of the peeled soybeans to the pure water is 1:8, the mixture is soaked at 85℃ for 30 min, after the soaking is completed, the pH value of the mixture is adjusted to 6.8 by using 5wt% NaHCO3 aqueous solution, the soybeans are crushed and ground by using a crusher and a fine grinder in sequence, the crushing and grinding is carried out under the pressure of 0.2 MPa, and the soybean milk liquid is collected after filtration; Step two, the enzyme inactivation treatment of the soybean milk liquid is carried out under the condition of 0.3 MPa pressure and 135℃ temperature for 10 min, and the soybean milk liquid after enzyme inactivation treatment is obtained; Step three, the soybean milk liquid after enzyme inactivation treatment is sterilized, filtered, and spray dried to obtain the soybean milk powder; The sterilization process includes: the mixture is heated to 90℃, and after the mixture is concentrated to a solid content of 36% under stirring, the stirring is continuously carried out and the temperature is kept for 35 min of sterilization; the pore size of the filter core used for filtration is 4 μm; the process parameters of spray drying are: the pressure of spray drying is 8 MPa, the exhaust air temperature is 105℃, the inlet air temperature is 190℃, and the tower temperature is 110℃.
[0024] In the above examples: the white kidney bean extract is purchased from Xi'an Meihuo Biological Technology Co., Ltd., the appearance is white powder, the particle size is 100 mesh, and the article number is MH-032205.
[0025] Test Example Hypoglycemic performance: Ten C57BL / 6J mice (half male and half female) were used as the control group, and 70 db / db mice (half male and half female) were randomly divided into 7 groups: model group, Example 1 group, Example 2 group, Example 3 group, Example 4 group, and Comparative Example 1 group. The mice were fed the soy milk powder prepared in Examples 1-6 and Comparative Example 1, respectively, by gavage once daily at a dose of 20 g / kg. -1 The control group and the model group were given the same amount of deionized water. After 12 weeks of continuous administration, fasting blood glucose levels in mice were measured at 2 hours and 24 hours after administration in week 13. Mice were fasted for 4 hours before administration. The results are shown in Table 1. Table 1 As shown in Table 1, the soy milk powder prepared by this invention, due to the addition of white kidney bean extract, which contains α-amylase inhibitors, can delay and partially block carbohydrate absorption, thus exhibiting good blood sugar control performance. Compared with Example 1, in Comparative Example 1, the blood sugar control performance was significantly reduced because no white kidney bean extract was added.
[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A method for preparing soy milk powder based on white kidney bean extract, characterized in that, Includes the following steps: Step 1: Add the peeled soybeans to pure water, heat and soak. After soaking, adjust the pH to 6.8-7.2, crush and grind, filter, and collect the soy milk. Step 2: Dissolve the white kidney bean extract in pure water to obtain a white kidney bean extract solution; The soybean milk was subjected to enzyme inactivation treatment. White kidney bean extract solution was added to the enzyme-inactivated soybean milk and mixed to obtain a mixture. Step 3: The mixture is sterilized, filtered, and dried to obtain soy milk powder based on white kidney bean extract.
2. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step one, the mass ratio of peeled soybeans to pure water is 1:(8-12).
3. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step one, the heating and soaking conditions are to keep the temperature at 85-95℃ for 20-30 minutes, and the crushing and grinding are carried out under a pressure of 0.2-0.3MPa.
4. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step two, when preparing the white kidney bean extract solution, the mass ratio of white kidney bean extract to pure water is 1:(10-20).
5. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step two, the enzyme inactivation treatment is carried out under the following conditions: 0.3-0.5 MPa pressure and 135-145℃ temperature for 6-10 minutes.
6. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step two, the mass ratio of the enzyme-inactivated soybean milk to the white kidney bean extract solution is 10:(3-5).
7. The method for preparing soy milk powder based on white kidney bean extract according to claim 6, characterized in that, In step three, the sterilization process includes: heating the mixture to 90-100°C, stirring and concentrating it until the solid content of the mixture is 36-40%, and then continuing to stir and maintain the temperature for sterilization for 15-35 minutes.
8. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step three, drying includes spray drying; The process parameters for spray drying are as follows: spray drying pressure is 8-12 MPa, exhaust temperature is 95-105℃, inlet temperature is 180-190℃, and tower temperature is 100-110℃.
9. The method for preparing soy milk powder based on white kidney bean extract according to claim 1, characterized in that, In step three, the pore size of the filter element used for filtration is 4-8 μm.
10. A soy milk powder based on white kidney bean extract prepared by the method for preparing soy milk powder based on white kidney bean extract as described in any one of claims 1-9.